private IBoxJSONStringEntity getEntity(BoxDefaultRequestObject obj) throws NoSuchMethodException, SecurityException, IllegalAccessException,
IllegalArgumentException, InvocationTargetException {
Method m = BoxDefaultRequestObject.class.getDeclaredMethod("getJSONEntity");
m.setAccessible(true);
IBoxJSONStringEntity entity = (IBoxJSONStringEntity) m.invoke(obj, (Object[]) null);
return entity;
}